Radio attachment for talking machines



Sept. 29, 19250 C. W. EALL RADIO ATTACHMENT FOR TALKING MACHINES Filed ma 12.. 1922 INVENTOR Patented Sept. 29 925. V Y

NITED": STATES PATENT QFFICE.

'W'I LBUR BALL, OF RICHMOND. HILL, NEW YORK @BADIO l r'rncmnnn'r son. TALKING MACHINES.

use-an filed ma 12, 1922. Serial lie-560,416.

To all whom it may concern: sages 5, 6, and progressively increases in Be it known that I, CHARLEs-WIL UR diameter toa point 8, where the walls of I BALL, a citizen-ofthe -United S tates, and the member 2 are arranged parallel to the resident" of ,Richmond Hill, Long- Island, outlet 9. This outlet 9 is fashioned to fit 60 6 New-York,-have invented a new'and useful into the upturned-recess 10 of the horn 11 Improvement .in y-Radio Attachments for Which is secured in positioninthe cabinet. Talking Machines, ofwhich the following is 12 of the talking machine. The memberl2 a specification: 3 I -is also provided with a shoulder 13 which This. invention relates to an attachment bears upon the walls surrounding the, re

10 for talking machines, with the object in cess-lO. v

- view of providing a device which"may be The free ends or the branches 3, l arel connected with the horn of 'a-talking' maprovided with oppositely disposed mp chine and. arranged to receivea set of head shaped elements 14, 15, each; of which has phones of a radioreceiving instrument, a peripheral wall-undercutto..receiveand' 15 whereby the sound received by the head maintain a pad 16 of felt or other suitable phones may be amplified and directed material. Each of the pads 16 has a cenhrough the horn of the talking machine. trally arranged hole 17 which registers with .Another object is to provide a device the mouth of its passage in the branches which will clarify the sound received .by the 3, 4.

'20 lead phones and eliminate foreign and A head phone 18 having a pair of sound harsh noises. receivers 19, 20, connected by springs 21, is

Anotherobject is to provide a device arranged to be engaged with the device so which is simple, durable and inexpensive that the receivers19, 20,"will contact with to manufacture. the pads 16 in the oppositely disposed cup- 90 26. Another object is to provide certain imshaped elements 14, 15, which receivers'are provements in the form, construction and yieldingly held in 'positionby the springs arrangement I of the parts, whereby the 21. The head phone '18 and its adjacent above named and other objects may beef mechanism is of well-known and approved fectively attained. I construction, and I do not deem it necessary 85 0 A practical embod'ment of my invention to describe its specific mechanism since it is is represented in the accompanying drawnot claimed herein. in in'which- It is obvious that various chan es may be ig. 1 represents a plan view of a talking resorted to in the form, construction and machine having the sound box and tone arm arrangement of the several parts without 90 removed,.and my improved device applied departing from'the spirit and scope of my invention; hence, I do not intend. to be thereto.

Fig. 2 replesents a side elevation of the limited to the specific details herein deame, partly in section.' scribed, except as they may be included in Fig. 3 represents a plan view or my device the claims. 05 40 on an enlarged scale. \Vhat I claim is:

.Fig. 4 represents an ,end elevation of the 1. A device of the character described same. comprising, a tubular member having its Fig. 5 represents a vertical section taken free end constructed for connection with an n the plane of the line V V-of Fig.4, amplifying horn, and hollow branches hav- 0 d ing their free ends constructed to hold the Fig. 6 represents a vertical section taken two receivers of a radio head set, the pasin. the plane of the line VIVI of Fig. 5. sages in the branches increasing in diameter The device is of 'T-shaped construction, as they approach each other and the passage the vertical hollow member being denoted in the tubular member increasing in diame- 1 6 by 2 and the horizontalbranches by 3, 4. ter from its junction with the branch pas- The horizontal branches are each provided sages. with a passage 5, 6, respectively, which pas- 2. A device of the character described. sages increase in diameter as they approach comprising, a tubular member having its each other. free end constructed for connection with an 110 The vertical member has a passage 7 amplifying horn, and hollow; branches prowhich connects at the junction of the pnsvided at their tree ends with 5 non- 'structed to the 6 preach each other and the passage m the tubular member increasing in' diameter from its junction with the-branch passages, 3. A device of the character des 'ibed comprising, a .tubular member having its free end-constructed for connection with an amplifying horn, vided' with cup-shaped members at their free ends constructed to hold the two receivers of a radio head set, said cup-shaped. membershaving undercut peripheral walls for receiving and retaining resilient pads, and said resilient pads 4. A device of the (1 free end constructed for connection with an 20 amplifying horn;

a tubular member having its and hollow branches pro-- vided with cup-shaped members at their free ends constructed. to hold the of a radio head set, said cup-shaped r'n'omtwo receivers 561's having undercut peripheral wallsfor receiving and 'said resilient pads, branches increasing and hollow branches proproach each other tubular member retaining res'lient pads, and the -passages in the m diameter as they apand the passage -in'the increasing in diameterfrom 80 its junction with the branch passages.-

I In testimony as my character'- described that I claim the-foregoing invention I'ha've signed my name this. day of May, 1922. v

CHARLES WILBUR BALL. 

